Madewell The Greta Ballet Flat Note: broken weave in heel Greta is back. Our best-selling open-weave leather ballet flats have a perfectly squared-off toe, an elastic Mary Jane strap and dozens of five-star reviews. Plus, our MWL Cloudlift Lite padding makes it feel like you're walking on a...well, you know. Upper: 100% leather. Unlined. Outersole: 100% polyurethane. Imported. Item NQ312